Hello, I read a lot in your forum and find it very good. Thank you for your often helpful contributions. I also have a question for you: I drive a Volvo V70, which also has a built-in car phone (chosen keyboard with SIM card slot next to the radio part, hands-free in the mirror and headrest, hands-on in the center console, display in the dashboard). If I choose now, I sometimes hear the free sign until someone calls, and sometimes I don’t hear a free sign at all, but silence until someone takes off. That’s very irritating and I can’t explain what this is all about. Do you have any idea or similar experiences?